The porcelain of the Song era was of such high quality due to the new techniques that were developed for producing porcelain.
The correct answer to this question is the first option. The Chinese people were the first to make porcelain in the world. They traded with this item.
The porcelain of the Song dynasty was unrivaled in terms of its quality. The porcelains were made with technical expertise.
They were also made into aesthetic perfection with glaze and good shape.
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